Norman Feusier

A rancher is murdered after discovering that 40 head of his cattle have been rustled. A neighboring family is accused of the crime and flees across the border, then tries to find the real killers to clear their name. (imdb)

As Powers is dying he tells Lee to look for a man with a girl named Mitzi. Heading north by dog sled as Curly the Kid, he finds her and her friend Lucky. But Slash is another friend and Lee is in trouble when his true identity becomes known.